[R] vector entry in matix
dwinsemius at comcast.net
Thu Jul 5 19:05:26 CEST 2012
On Jul 5, 2012, at 11:22 AM, R. Michael Weylandt wrote:
> It is possible to put dimensionality on a list (i.e., a generic
> vector), which might be what you're looking for.
> x <- list(1:4, letters[1:4], function(x,y) x + y, rnorm(50))
> dim(x) <- c(2,2)
> x[[3,2]] # Error
That constructs a 2 x 2 matrix whose elements are lists:
[1,] Integer,4 ?
[2,] Character,4 Numeric,50
I suppose one could take that approach to constructing an Excel-mimic,
since the functional element survives that passage:
> On Thu, Jul 5, 2012 at 8:19 AM, Thomas C. <thomas.csapak at gmail.com>
>> i'm trying to figure out if there's any possibility to write a
>> whole vector
>> into a matrix or data.frame or something like that. i don't mean
>> transormation. Here an example:
>> [,1] [,2]
>> [1,] "a" "d"
>> [2,] "b" "e"
>> [3,] "c" "f"
>> where e.g. a is a<-c(0,1) vector of length 2, b a vector of length
>> 4,... (i
>> know that the matrix enties are strings :)). i'm trying to put some
>> variables into a matrix or data.frame, but i couldn't handle it. is
>> something like that possible in R?
The matrix classes objects loose their names, however. You will not
have a,b, ... as handles in that matrix. You could create row and
>> thanks for your help!
David Winsemius, MD
West Hartford, CT
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